X is a random variable having normal distribution , mean = 15 and standard deviation = 0.6. what is k if P(X is less that or equal to k) =0.8777 1] 15.104 2] 16.967 3] 17.504 4 ]15.696 i could not...

X is a random variable having  normal distribution  , mean  = 15 and standard deviation = 0.6.

what is k  if P(X is  less that  or equal to k) =0.8777

1] 15.104

2] 16.967

3] 17.504

4 ]15.696

i could not find the symbol for less than equal to in the keyboard , hence  i have written it in words .